Chain-link.



PATENTED OOT. 27,1903,-

Tatented October 27, 1903.

PATENT OFFICE.

ADOLF DROST, OF ESSEN, GERMANY.

CHAIN-LINK.

SPECIFICATION forming part of Letters Patent No. 742,402, dated October 27, 1903. Application filed December 30,1902. Serial No. 137,087. (No model.)

In the accompanying drawings, Figure l is a side view 01": a pair of closed chain-links embodying my invention. Fig. 2 is a section on line a a, Fig. 1; Fig. 3, a section on line M), Fig. l; and Fig. 4 a side view of the open chain-link. I

The letter 0 represents a chain-link composed of bar-iron and made of suitable form. Each of the two ends 0 is flattened and is bent firstinward and then outward, thus forminga pair of spirals that extend in opposite directions, Figi 4:. The ends thus formed are first brought into engagement and are then compressed or flattened sidewise to become interlocked.

., The chain-link constructed in the above manner is very strong and will not break or open under ordinary strain.

What I claim is- A chain-link provided with a pair of fiattened and laterally-compressed ends which extend spirally in opposite directions, substantially as specified.

. Signed by me at Dusseldorf, Germany, this 15th day of December, 1902.

ADOLF DROST.

Witnesses WILLIAM ESSENWEIN, PETER LIEBER. 

